The difference between yii2 and ci
1. yii2 is a full-stack framework.
Advantages:
1) Has standardized Chinese and English documentation
2) Yii’s code is simple and elegant
Recommended related articles and tutorials:yii tutorial
3) Yii is very easy to extend
4) High performance is always one of Yii’s primary goals
Disadvantages:
1) The learning curve is relatively high
Generally speaking, it is very suitable for large-scale commercial projects. Yii is a performance and componentization framework.
2. ci, the full name is CodeIgniter. A very lightweight and excellent framework.
Advantages:
1) It has easy-to-use features
2) It has standardized Chinese and English documents
3) There is a lot of space for customization Big
4) Very lightweight, supports full page caching
Disadvantages:
1) Some functions require you to write extensions yourself
2) Non-domestic The framework, relatively speaking, is not as easy to use as tp5 for beginners
Overall, it is very suitable for small personal and commercial projects. ci is a high performance and lightweight product.
Summary: To develop personal small projects, use ci, to develop large projects, use yii2;
More,Website construction introductory tutorial For related knowledge, please pay attention to PHP Chinese net.
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Yii is still competitive in modern development. 1) High performance: adopts lazy loading and caching mechanisms. 2) Security: Built-in CSRF and SQL injection protection. 3) Extensibility: Component-based design is easy to expand and customize.

The Yii community provides rich support and resources. 1. Visit the official website and GitHub to get the documentation and code. 2. Use official forums and StackOverflow to solve technical problems. 3. Report bugs and make suggestions through GitHubIssues. 4. Use documents and tutorials to learn the Yii framework.

Yii is a high-performance PHP framework designed for fast development and efficient code generation. Its core features include: MVC architecture: Yii adopts MVC architecture to help developers separate application logic and make the code easier to maintain and expand. Componentization and code generation: Through componentization and code generation, Yii reduces the repetitive work of developers and improves development efficiency. Performance Optimization: Yii uses latency loading and caching technologies to ensure efficient operation under high loads and provides powerful ORM capabilities to simplify database operations.

Yii is a high-performance framework based on PHP, suitable for rapid development of web applications. 1) It adopts MVC architecture and component design to simplify the development process. 2) Yii provides rich functions, such as ActiveRecord, RESTfulAPI, etc., which supports high concurrency and expansion. 3) Using Gii tools can quickly generate CRUD code and improve development efficiency. 4) During debugging, you can check configuration files, use debugging tools and view logs. 5) Performance optimization suggestions include using cache, optimizing database queries and maintaining code readability.

YiiremainspopularbutislessfavoredthanLaravel,withabout14kGitHubstars.ItexcelsinperformanceandActiveRecord,buthasasteeperlearningcurveandasmallerecosystem.It'sidealfordevelopersprioritizingefficiencyoveravastecosystem.

Yii is a high-performance PHP framework that is unique in its componentized architecture, powerful ORM and excellent security. 1. The component-based architecture allows developers to flexibly assemble functions. 2. Powerful ORM simplifies data operation. 3. Built-in multiple security functions to ensure application security.

Yii framework adopts an MVC architecture and enhances its flexibility and scalability through components, modules, etc. 1) The MVC mode divides the application logic into model, view and controller. 2) Yii's MVC implementation uses action refinement request processing. 3) Yii supports modular development and improves code organization and management. 4) Use cache and database query optimization to improve performance.

Strategies to improve Yii2.0 application performance include: 1. Database query optimization, using QueryBuilder and ActiveRecord to select specific fields and limit result sets; 2. Caching strategy, rational use of data, query and page cache; 3. Code-level optimization, reducing object creation and using efficient algorithms. Through these methods, the performance of Yii2.0 applications can be significantly improved.


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